Question

Give an expression for kinetic energy of an object.

Answer 1

1. The energy possessed by an object due to its state of motion is known as kinetic energy ${\left(E_k\right)}_{}$.
2. Let us consider a body of $mass\left(m\right)$ and $velocity\left(v\right)$ of an object.
3. So, the kinetic energy ${\left(E_k\right)}_{}$of an object is given by,

$Kineticenergy$ ($E_k$) = $\frac{1}{2}xmx{v}^2$

4. SI Unit of kinetic energy is $Joule\left(J\right)$.